Femoral nerve palsy is reduced function of the femoral nerve, usually causing leg weakness and altered sensation. In plain terms, it can make it harder to lift the thigh or straighten the knee, and it can cause numbness in the front of the thigh. It is most commonly discussed in orthopedics, neurology, sports medicine, and rehabilitation. Clinicians also use the term around hip, pelvic, and spine conditions, including after certain surgeries or injuries.

Femoral nerve is a major peripheral nerve of the lower limb. It carries motor signals to key hip and knee muscles and sensory signals from the front of the thigh and inner lower leg. It is commonly discussed in hip pain evaluations, nerve blocks for surgery, and nerve testing. It is also relevant in some sports, trauma, and post-surgical nerve symptoms.

Femoral neck stress fracture is a small crack or injury in the femoral neck, the narrow part of the thigh bone just below the hip ball. It develops from repeated loading over time rather than a single major fall or collision. It is commonly discussed in sports medicine, orthopedics, and military or endurance training settings. It can also occur in people with bone weakness, where normal daily forces may be enough to cause injury.

Femoral neck osteotomy is a planned surgical cut through the femoral neck, the narrow “bridge” of bone between the femoral head and the femoral shaft. It is most commonly performed as a step within hip replacement surgery. It can also be used in selected reconstructive or salvage hip procedures when the femoral head must be removed. The exact cut location and angle are tailored to the patient’s anatomy and the overall surgical goal.

Femoral neck malunion means a femoral neck fracture has healed, but in a misaligned position. It can change hip mechanics and contribute to pain, stiffness, or altered walking. The term is commonly used in orthopedic clinics and radiology reports after hip fracture healing. It helps clinicians describe alignment, anticipate symptoms, and discuss treatment options.

Femoral neck nonunion means a fracture in the femoral neck has not healed within the expected timeframe. The femoral neck is the narrow “bridge” of bone between the femoral head and the femoral shaft. This term is commonly used in orthopedics to describe a difficult healing problem after hip fracture. It helps clinicians communicate diagnosis, plan treatment, and discuss expected recovery.

Femoral neck fracture Pauwels III is a way to describe a specific, high-angle break in the femoral neck of the hip. It is part of the Pauwels classification, which focuses on the direction of the fracture line. Clinicians use it to communicate stability and forces across the fracture in simple biomechanical terms. It is most commonly referenced when planning treatment and discussing risks after a femoral neck fracture.

Femoral neck fracture Pauwels II is a way to classify a specific type of hip fracture. It describes a femoral neck fracture with a “moderate” fracture angle linked to shear forces. Clinicians most often use it when reading hip X-rays and discussing surgical planning. It is a classification label, not a treatment by itself.

Femoral neck fracture Pauwels I is a way to classify a specific type of hip fracture based on the angle of the fracture line. It describes a femoral neck fracture with a relatively low (more horizontal) fracture angle. It is most commonly used by orthopedic clinicians when reviewing hip X-rays (and sometimes CT) to describe fracture mechanics. It helps communicate stability and likely force patterns across the fracture.

Femoral neck fracture Garden IV is a classification label for a severe hip fracture. It describes a completely displaced fracture through the femoral neck (the “neck” of the thigh bone). Clinicians use it to communicate fracture severity and to help frame treatment planning. It is most commonly used in emergency, orthopedic, and trauma settings.